SHEEMAN0415 Posted April 4, 2015 Report Posted April 4, 2015 I just bought a banshee and it seems to have a few small problems. I noticed when i start it up there is more exhaust comin out of my left pipe than the right, and the left pipe also gets warm way before the right one does which makes me think that the piston is working harder than the other one for some reason. I also noticed that the left exhaust spits alot of oil when i rev it up, the right side does not do this. Any helpful info would be appreciated thanks! Quote
wayne_smith97 Posted April 4, 2015 Report Posted April 4, 2015 Clean carbs and leak down test before you even start it again. Could just be the carbs are out of sync, but you should do these things listed above as a safety precaution Quote
wayne_smith97 Posted April 4, 2015 Report Posted April 4, 2015 Make sure your floats are set at 21mm Quote
SHEEMAN0415 Posted April 4, 2015 Author Report Posted April 4, 2015 just did a compression. left side got 120 right side got 100. what ya'll think? Quote
wayne_smith97 Posted April 4, 2015 Report Posted April 4, 2015 Get a second gage and recheck. If the same reading shows up, do a leak down to determine if there is a leak. Then rebuild Quote
SHEEMAN0415 Posted April 5, 2015 Author Report Posted April 5, 2015 ok if i rebuild, if i have a standard bore with no bore overs or anything do i stick with 65mm pistons? Quote
wayne_smith97 Posted April 5, 2015 Report Posted April 5, 2015 Take the cylinders to a machine shop they can tell you whether they need a bore or just a hone. 64mm is stock 1 Quote
sleeper06 Posted April 5, 2015 Report Posted April 5, 2015 Never bore more than needed, if stock stroke you can go .010 over, I would let Machine shop look first, leakdown is A must before tear down it can let u know if your crank seals are good so u don't burn up a brand new top end, and current state of all gasket /seals associated with fuel mixture 1 Quote
SHEEMAN0415 Posted April 5, 2015 Author Report Posted April 5, 2015 Now do i have to get the cylinders bored and or honed or can i just keep them stock and get the new pistons and put them in? Quote
bigweav81 Posted April 5, 2015 Report Posted April 5, 2015 Sounds like you have already made your decision. Quote
wayne_smith97 Posted April 5, 2015 Report Posted April 5, 2015 Now do i have to get the cylinders bored and or honed or can i just keep them stock and get the new pistons and put them in? Read post I made a few post back. A qualified machinist will give you this answer Quote
Larry's Shee Posted April 6, 2015 Report Posted April 6, 2015 I have only once put a new piston in an old hoe. It was worn less than half the allowed tolerance. Tho I never had any problems with it, I'd never do it again. My thought is if you're going spend money on new pistons, do everthing the best you can. Might consider just new rings if things are within specs. On comp test, throttle WFO, kick until gage stops moving. Quote
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